Closure.



J. V. HULL.

CLOSURE.

APPLIGATION FILED MAY 28, 1914.

1 1 3%,Q67 a Patented. Mar. 30, 1915.

WITNESSES:

A TTOR/V E Y ED STATES PATENT OFFICE- JOSEPH V. HULL, OF BROOKLYN, NEW YORK, ASSIGNOR TO ANCHOR CAP & CLOSURE CORPORATION, OF BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK.

CLOSURE.

Specification of Letters Patent.

. Patented Mar. 30, 1915.

Original application filed March 6, 1912, Serial No. 682,051. Divided and this application filed May 28, 1914. Serial No. 841,491.

To all whom it may concern Be it known that I, Josnrrr V. HULL, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented new and useful Improvements in Closures, of which the following is a specification.

This invention relates to closures which are applied to containers in which are to be sealed foodstuffs and the like, and has particular reference to a closure of the side sealing type which usually includes a metallic closure having an annular beading in which a compressible gasket is located, the beading and gasket being compressed by suitable means against the side Wall of the container to form aseal.

disclosed and claimed having been divided One object of the invention is to provide a more efiicient closure for the packing and preservation of foodstuffs; another. object is to provide a closure which may be applied quickly and by machinery to the container without causing breakage of the latter; still another object is to provide a closure which will ofier the minimum resistance to the sealing operation as performed by the machine; and still another object is to provide a closure which will maintain a hermetic seal for a long period of time, in cases where the goods are packed in a vacuum and wherethe closure is applied to glass tumblers and the like. 4

Referring to the drawings: Figure 1 is an elevation of a glass container equipped with a closure which is shown in section; and Fig.2 is a similar view of the closure showing its form after the sealing operation has taken place. 1

The glass container which is shown in the i present instance is indicated at 10 and is of cylindrical form though other forms may also be used. The closure consists of a metallic cap 11 having a depending flange 12 and a beading formed by the walls 13, 14:

i and 15. Within this beading is located a sealing gasket 16 ofsuitable material which is adapted to be compressed within the beading and against the side wall of the container 10.

The application is a divisional one, the subject matter herein Before sealing, the closure is slipped over the container as shown in Fig. 1, a suitable clearance between the gasket 16 and the container wall is provided for this purpose. The container and closure are then inserted n a sealing machine by which the beading 1s squeezed so that the gasket is forced against the container wall and effects a seal therewith.

Various forms of machines may be used for this purpose, and these form no part of the present invention. Reference may be had to a typical machine for this purpose as disclosed in my patent application Serial No. 682,051, or my Patent No. 874,201.

It will be noticed that with this form of closure the gasket 16 is surrounded on its top, bottom and outer side by the metal of the closure, while its inner side abuts the glass wall of the container 10. The seal is effected by a suitable compressionof the metallic boundary surfaces so that the sealing material 16 is displaced partially from within the beading and moves against the container wall to efl'ect the seal, as indicated in F ig. 2; This compression alters the form of the beading so that there is more or less distortion and flow of the metal during the compressing operation. In my Patent No. 874,201 the compressing jaws were made heavy and massive and the metal displaced tended to form minute radial wrinkles; the sealing operation required a great deal of power, there was more or less breakage of glass, and very heavy shouldered containers were preferably used. I have found, however, that these disadvantages are eliminated by providing a groove in one of the three metallic walls about the gasket, as shown at 17 in Fig. 2. The provision of this groove takes care of the excess metal that presses upon the machine jaws in the operation of sealing so that less power. is required to effect the sealing of the gasket 16 against the glass, the seal is more effective and there is much less breakage of glass containers.

In operation, the excess metal caused by compressing the heading flows or is distorted into the groove, and no radial p from the sealing operation.

of the three sides-of the metallic beading wall, or on more than one side, so that while I prefer to form the groove upon the upper wall of the beading and while I prefer to form it by means of a suitable groove-bead? ing located upon the compressing jaws of the machine, as shown in my application berial No. 682,051, the invention is not limited to this particular location or to the particular manner in which it is done.

What is claimed:

I 1. In a sealing closure for bottles, jars or other receptacles, a metallic closure having an annular beading, a packing ring inclosed in the beading and held under compression by the walls of the beading, the said ring being squeezed laterally against the side wall of the receptacle, and an annular groove in the upper side of said beading formed from the excess metal of the beading. resulting 2. In a sealing closure for bottles, jars or other receptacles, a metallic closure having an annular beading, a gasket inclosed in the beading and held under compression by the walls of the beading, the said gasket gasket, cess metal in the heading.

being squeezed laterally against the side wall of the receptacle, and an annular groove in one of the walls of said beading formed of excess metal in the beading.

3. In a sealing closure for bottles, jam or other receptacles, a metallic closure having an annular beading, a gasket inclosed in the beading and'held under compression by the walls of the beading, the said gasket being squeezed laterally against the side Wall of the receptacle, and an inwardly projecting lip extending from one of the beading walls and contacting with the said the said lip being formed of the ex- 4. A package comprising a container having a mouth with a continuous wall, in combmation wlth a sealing cap having a downwardly extending flange provided with an annular-beading, a -gasket held compressed between the upper and lower walls of the said beading with a portion of said gasket displaced under pressure radially inward into contact with the wall of the container and forming a frictional seal therewith.

5. A package comprising a container having a mouth with a continuous wall, in combination with a sealing cap having a downwardly extending flange provided with an annular beading, a gasket held under compression between opposing walls of the beading with a portion of said gasket displaced laterally under said compression against the wall of the container and forming a frictional seal therewith. v

6. A package comprising a container having a mouth with a continuous wall, in combination with a sealing cap having a downwardly extending flangeprovided with an annular beading, and a gasket pinched between the beading walls and squeezed laterally against the wall of the container whereby a frictional seal is formed. I

7. In combination, a container having a q straight continuous wall and a sealing cap equipped with a downwardly extending flange provided with an annular beading, and an annular groove inthe upper side of said beading.

8. In combination, a container having a straight continuous wall and a cap having a downwardly extending flange provided with an annular beading, a packing ring in said beading, the heading having an inwardly projecting lip depending from the upper inner side of said heading and adapted to hold said pacldng ring in position and to regulate the pressure of the ring upon the container wall.

, JOSEPH V. HULL. Witnesses:

DAVID CoRIN, D. C. HULL. 

